Open AccessAn Identity‐Based Group Key Agreement Protocol for Low‐Power Mobile Devices
Author(s) -
Teng Jikai,
Wu Chuankun
Publication year - 2016
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2016.06.038
Subject(s) - group key , forward secrecy , computer science , computer network , key (lock) , protocol (science) , node (physics) , key agreement protocol , communication in small groups , wireless network , wireless , secrecy , computer security , distributed computing , public key cryptography , key distribution , encryption , telecommunications , engineering , medicine , alternative medicine , pathology , structural engineering
In wireless mobile networks, group members join and leave the group frequently, a dynamic group key agreement protocol is required to provide a group of users with a shared secret key to achieve cryptographic goal. Most of previous group key agreement protocols for wireless mobile networks are static and employ traditional PKI. This paper presents an ID‐based dynamic authenticated group key agreement protocol for wireless mobile networks. In Setup and Join algorithms, the protocol requires two rounds and each low‐power node transmits constant size of messages. Furthermore, in Leave algorithm, only one round is required and none of low‐power nodes is required to transmit any message, which improves the efficiency of the entire protocol. The protocol's AKE‐security with forward secrecy is proved under Decisional bilinear inverse Diffie‐Hellman (DBIDH) assumption. It is additionally proved to be contributory.